An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting

Mohamady S, Broemme Niclas, Montazeri A. An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting. In: AES Convention 148. Audio Engineering Society; 2020. Paper 610. Available from: https://aes.org/publications/elibrary-page/?id=20848

@inproceedings{Mohamady2020_20848,
  author = {Mohamady, Samira and {Broemme Niclas} and Montazeri, Allahyar},
  title = {{An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting}},
  booktitle = {AES Convention 148},
  note = {Paper 610},
  year = {2020},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20848}
}

TY  - CPAPER
TI  - An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting
AU  - Mohamady, Samira
AU  - Broemme Niclas
AU  - Montazeri, Allahyar
T2  - AES Convention 148
M1  - Paper 610
PY  - 2020
DA  - 2020/05/06
UR  - https://aes.org/publications/elibrary-page/?id=20848
PB  - Audio Engineering Society
LA  - en
AB  - The previous numerical studies confirms that the effect of coupling amongst loudspeakers cannot be neglected in a multiple channel active noise control (ANC) system with several loudspeakers and microphones, placed in a confined space. Depending on the electromechanical properties of the loudspeakers, the coupling happens through the enclosure acoustic modes and this will change the radiation impedance of the loudspeakers. As a result, the performance of the ANC system influence due to the changes of the supplied voltage to the secondary loudspeakers. Nevertheless, the previous investigation rely on the simplified model of the loudspeakers as a solid piston in the ANC frequency range of interest. In this study, we aim to generalize these results by including a detailed finite element model (FEM) of the loudspeaker, in which the electromechanical impedance of a real loudspeaker is simulated numerically and validated experimentally afterwards. The validated loudspeaker is used for the numerical simulation of the ANC system inside an enclosure using the finite element method
ER  -